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发明名称
KEYBOARD DEVICE
摘要
申请公布号
JPH0290815(A)
申请公布日期
1990.03.30
申请号
JP19880242935
申请日期
1988.09.28
申请人
TOPPAN PRINTING CO LTD
发明人
NAKAJIMA TOSHIO
分类号
G06F3/023;H01H13/12;H01H13/70;H03M11/08;H03M11/20
主分类号
G06F3/023
代理机构
代理人
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